Figure 3

Percent of patients on monotherapy during the 1-year following initiation on the atypical antipsychotic medication. Using a GEE (generalized estimating equations) repeated measures binary data model, pair-wise comparisons found a significantly higher rate of monotherapy for olanzapine compared to quetiapine (p = .002) and risperidone (p = .043). The difference between risperidone and quetiapine approached statistical significance (p = .085).